//created with rubyscad 1.0

polyhedron(points = [[10, 0, 0], [0, 10, 0], [-10, 0, 0], [0, -10, 0], [0, 0, 10]], triangles = [[0, 1, 2, 3], [4, 1, 0], [4, 2, 1], [4, 3, 2], [4, 0, 3]]); 
